Immigration · Primary-source case analysis

Wong Yang Sung: Deportation Hearings Required Procedural Separation Under the APA

By Aneeta Mishra and Timothy Chan

Published August 31, 2026

Wong Yang Sung v. McGrath arose when an immigration inspector both developed the government’s case and presided over the deportation hearing.

The inspector occupied conflicting roles

The presiding official questioned witnesses, developed evidence supporting removal, prepared findings, and operated within the investigative service.

The APA targeted combined prosecution and judging

Congress adopted formal-hearing safeguards to improve impartiality and public confidence in administrative adjudication.

A legally compelled hearing fell within the Act

The hearing requirement could arise from the statute as constitutionally construed; it did not need an express on-the-record formula to receive the safeguards then at issue.

The deportation order could not stand

The Court reversed the habeas judgment because the admitted procedure did not comply with the APA, though Congress later enacted immigration-specific procedures.

Key takeaways

• Identify the current statutory and regulatory hearing framework.
• Preserve objections to role conflicts and off-record influence.
• Build a record showing how the challenged process affected adjudication.
• Account for later congressional changes before relying on this historical APA holding.